食品科学 ›› 2010, Vol. 31 ›› Issue (22): 492-495.doi: 10.7506/spkx1002-6630-201022111

• 包装贮运 • 上一篇    下一篇

草酸对桃贮藏期抗性相关酶活性的诱导

张 阔1,秦 文1,*,李正国2,彭春华3   

  1. 1.四川农业大学食品学院 2.重庆大学生物工程学院 3.成都龙泉驿区果树研究所
  • 收稿日期:2010-06-30 出版日期:2010-11-25 发布日期:2010-12-29
  • 通讯作者: 秦 文 E-mail:qinwen1967@yahoo.com.cn
  • 基金资助:

    成都市科技攻关计划项目(10GGYB208NC-182)

Induction of Enzyme Activity in Peach with Oxalic Acid Treatment during Storage

ZHANG Kuo1,QIN Wen1,*, LI Zheng-guo2, PENG Chun-hua3   

  1. 1. College of Food Science, Sichuan Agricultural University, Ya’an 625014, China;
    2. College of Bioengineering, Chongqing University, Chongqing 400030, China;
    3. Longquanyi Fruit Research Institute, Chendu 323700, China
  • Received:2010-06-30 Online:2010-11-25 Published:2010-12-29
  • Contact: QIN Wen E-mail:qinwen1967@yahoo.com.cn

摘要:

以栽培品种“皮球桃”为试材,采后以草酸溶液浸泡处理后,置于温度为(1 ± 1)、(4 ± 1)、(8 ± 1)℃的气调库贮藏,测定贮藏过程中部分抗性酶的活性以及丙二醛的含量,探讨草酸、温度等对气调贮藏条件下的皮球桃采后抗性生理的影响。结果表明:与对照组相比,草酸处理能提高桃果SOD、CAT 的活性,在贮藏中后期提高PPO 的活性,对POD 没有直接影响,并使MDA 的积累得到控制。以草酸(1 ± 1)℃的处理组的效果最为明显,说明草酸和低温能在一定程度上提高桃果实的抗性。

关键词: 草酸, 抗性, 酶活性, 温度

Abstract:

The peach ball peach fruits were treated with oxalic acid solution after harvest and then placed in atmospherecontrolled cold storage at the conditions of (1 ± 1), (4 ± 1) ℃ and (8 ± 1) ℃. The activities of resistant enzymes and the content of malondialdehye (MDA) during atmosphere-controlled storage were determined to explore the effects of oxalic acid and temperature on resistant physiology of postharvest peach fruits. Compared with the control group, oxalic acid solution could improve the activities of SOD and CAT, and improve the activity of PPO in the mid and late period of storage as well. However,oxalic acid treatment did not exhibit direct influence on POD activity and decrease the content of MDA in postharvest peach fruits during storage. The most obvious effect of oxalic acid treatment at (1 ± 1) ℃ on peach fruits was observed. Therefore, oxalic acid treatment and low temperature storage can enhance the resistance of peach fruits to a certain degree.

Key words: oxalic acid, resistance, enzyme activity, temperature

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